Spinning apparatus



Aug. 15, 1933. I I HARRIS 1,922,950

SPINNING APPARATUS Filed Nov. 17, 1932 4 Sheets-Sheet l i 5 I i 4' 35 308/ INVENTOR.

mar/220$ 170/723 ATTORNEYS.

Aug. 15, 1933. T, HARRls 1,922,950

SPINNING APPARATUS Filed Nov. 17, 1932 4 Sheets-Sheet 2 llllllllllliillllllll l ATTORNEYS.

Aug. 15, 1933. T. HARR|$ 1,922,950

SPINNING APPARATUS Filed Nov. 17, 1932 4 SheetsSheet 3 IN V EN TOR.

Aug. 15, 1933. HARRls 1,922,950

SPINNING APPARATUS Filed Nov. 17, 1932 4 Sheets-Sheet 4 [mm/ ly 9 IIIIIIIIII /////A mrz A TTORNEYS.

Patented Aug. 15, 1933 UNITED STATES SPINNING APPARATUS Thomas Harris,Providence, R. I.

Application November 1'7, 1932 Serial No. 642,998

12 Claims. (o1. 19-420) This invention relates to a spinning apparatusand is a continuation in part of my co-pending application Serial No.527,498, filed April 3, 1931, it has for one of its objects theprovision of a 5 construction for long draft spinning in a single unit.

Another object of the invention is to eliminate the handling of the workbetween different processes in providing a yarn suitable for weaving,and other purposes.

A further object of the invention is the provision of a constructionwhich will act upon a large sliver and control the selvages of thesliver in its passage thru different operations for reducing it to thesize of yarn desired.

A still further object of the inventionis the provision of a more evenyarn by spinning the same from the sliver where its size and weight perunit of length are substantially even.

Another object of the invention is the provision of a construction whichmay be controlled for each yarn end so that but one end in the spinningoperation will be stopped should the yarn break, without the necessityof stopping other companion units for operating other slivers of yarns.

ll. still further object of the invention is the provision of aconstruction in which one of a plurality of hip rolls which engage thestrand as it passes thru the apparatus will traverse one with referenceto the other as they revolve that the wear may be distributed over thesurface of the rolls rather than occur in one particular part c thereof.

i ith these and other objects in view, invention consists of certainnovel features of construction, as will be more fully described, andparticularly pointed out in the appended claims.

In the accompanying drawings:

Fig. l is a sectional view of my apparatus illustrating different niprolls as positioned in one position of their operation.

Fig. 2 is a plan view of one of the units which are slidably mounted inthe frame and showing portions of the frame in section.

Fig. 3 is a plan view of the slide plate which is slidably mounted oneach of a plurality of decks.

Fig. 4 is a sectional view on the line of Fi 3.

Fig. 5 is a top plan view of the member which is rotatably mounted on'the plate and of the construction shown in Figures 3 and 4.

Fig. 6 is a sectional View on line 66 of Fig. 5.

Fig. 7 is a sectional view on line -7 of Fig. 5.

Fig. 8 is a sectional view on line 8-8 of Fig. 5.

Fig. 9 is a perspective view of the driving roll and the traversing rollshowing the carriage in which the traversing roll is mounted and itslink connection to a portion of the lever for operating the same.

Fig. 10 is a sectional View showing the locking mechanism and taken online 10-10 of Fig. 2.

Fig. 11 is a diagrammatic view of the driving mechanism for thedifferent rotary members which are mounted upon the plates of theapparatus.

Cotton sliver from the cardis usually doubled or several ends placedtogether thru a drawing frame, then a slubbing process and two or threeP intermediate roving processes before spinning. A-twist is placed inthe roving in order that it may he pulled from one place to another. andin order to eliminate several processes and spin the yarn directly fromdoubling where is more even, place a false twist in the sliver betweeneach pair of drawing rolls to control the edges of the sliver and p"event the fibers at the edges thereof from fraying; and in order thatthe yarn may not be too tightly falsely twisted hetween the receivingand delivery rolls by which drawing will be retarded or prevented, I mayplace a false twist in the yarn in one direction between the first twopairs of drawing rolls and in the opposite direction between the nextpair of drawing rolls and so forth thru the machine, whereby I may takethe sliver di rectly fromv the doubling operation and spin the same witha long draft, thereby eliminating the sluh'oing and the intermediateroving pro- Q cesses and from which I may finally obtain an extremelylong draft of yarn without fraying of the edges and a yarn of improvedquality by reason of the fact that 1 spin the yarn directly from thedoubling process at which point it is more even in weight and size thanat any other step in the operation; and the following is a detaileddescription of the present embodiment of this invention illustrating thepreferred means by which. these advantageous results he accomplishedz-With reference to the drawings, 10 designates the frame worlr of myconstruction, which consists of a plurality of decks which i designateas ll, l2, l3, l4, l5 and 16, which are supported. by suitable standards17, maintaining them in the desired spaced relation which may be adjustable if desired by some suitable means.

Upon each of these decks, except the upper one 11, there is mounted aslidable plate which I will designate 18, 19, 20, 21, 22 and 23. Theupper plate 18 has a central opening and is provided with bearings 24and 25 fixed thereon to rotatably support a fluted roll 26 therein,which roll is driven by means of a worm 27 and worm gear 28, from asuitable source of power supported by the frame work of the machine. Acompanion roll with an axis parallel to the axis of the roll 26 isyieldingly pressed towards the roll 26 to provide a nip on the yarn in awell known manner.

The plates 19, 20, 21 and 22 are formed differently than the plate 18and are illustrated in a plan view, shown in Fig. 3, and in section inFig. 4. In each of these plates there is a central opening 29 withinwardly-extending gear teeth 30 provided around the edge thereof. Theplate is provided with a finished surface 31 providing one part of theball race and supporting balls 32 which in turn support a rotary member33, which is shown in plan view in Fig. 5 and in section in Fig. 6. Thisrotary member is of dish shape and is provided with teeth 34 in a planeabove the plate to mesh with a driving gear. The drive for each rotarymember differs in that each is rotated in the opposite direction fromthe next member. One form is shown in Fig. 2, there showing a drivinggear 35 which in turn is driven by a train of gears 36, 37 and 38connected to the drive shaft 39.

This rotary member carries a shaft 40 upon which a pinion gear 41 ismounted, which pinion is positioned to engage with the internallyextending teeth 30 of the plate so as the rotary member turns about itsown axis the shaft 40 will be rotated.

Upon this shaft 40 a worm gear 42 is provided which drives the worm 43which is fixed on the worm shaft 44 upon which roll 45 is mounted, thisshaft being suitably supported in bearings 46 and 47 fixed upon therotary member 33. The

pitch of the teeth on the worm 43 and gear 42 will vary to cause thedesired direction of rotation of travel. The companion nip roll 48 issuitably supported in a carriage 49 which may be slid over the surfaceof the rotary member supported by a boss 50, shown best in Fig. 6, andwhich carriage is forced towards the drive roll 45 by means of helicalsprings 51 abutting at one end 52 in the rotary member and encircling apin 53 rockably supported in the carriage 49, whereby they may causepressure to be applied to the roll in different positions of its axialmovement wtih respect to the roll 45.

This carriage is slidable along the rotatable member and beneath a plate54 which is held by bolts 55 firmly against an abutment 56 so that thecarriage is guided in its travel between this plate and the slidesurface 50 on the rotatable member.

In order that oscillating movement may be imparted to the carriage 49and its roll 48, I have provided a worm 57 on the end of the roll shaft44 with which there meshes a worm gear 58 fixed to a shaft 59 androtatably supported in the rotary member 33. Below the gear 58, there isa spur gear 60 which meshes with an intermediate gear 61 fixed to ashaft 62 upon which there is also mounted a spur gear 63, which gearswith gear 64 fixed upon another shaft 65 upon which there is provided aheart-shaped cam 66. A lever 67 pivoted upon the shaft 59 has abifurcated end 68 to engage the heart-shaped cam for oscillating aboutthe pivot or shaft 59 in response to movement of the cam.

A link 69 connects the free end of the lever 6'1 with the carriage sothat as the cam operates the roll 48 will be oscillated axially back andforth across the roll 45 so that its leather covered surface will notbecome worn by travel of the strands between it and the metal fiutedroll 45 in any one place. A finger piece 70 is provided upon thecarriage in order that the roll may be manually separated for taking outroll or other purposes.

Each of the plates 19, 20, 21 and 22 is slidable into place on its deckand each is similarly equipped and they are arranged so that their pairsof rolls are at substantially right angles one to the other. Therevolving of the rolls' about a center between them is had in oppositedirections by adjacent decks so that they impart a false twist in theyarn. In Fig. 11, I have illustrated diagrammtically the rotary membersA, B, C and D, comparable to the members 33 on the plates, 19, 20, 21and 22 which are driven from a drive shaft 39. The upper rotary member Ais shown as driven from the gear 72 thru an inter mediate gear 73. Thenext rotary member B is shown as driven from gear 74 thru twointermediate gears 75 and '76, in order that a reverse rotation may beimparted thereto. The next rotary member C is rotated from gear '77 thrua single intermediate member '78, in order that it may have the samerotation as rotary member A, while rotary member D is driven directlyfrom gear 79 on the drive shaft that it may have the same direction ofrotation as the rotary member B. The worm and gear 42 and 43 will onmembers A and C have an opposite pitch from the similar worm and gear onmembers B and D. It will also be understood that the nip rolls are sogeared as to rotate progressively faster that a draft may be had betweenthem and the fibers pulled out to provide a yarn of the desired size.

The lower draft rolls on the plate 23 are similar in many respects tothe mounting of the draft roll on the plate 18. Bearings 80 and 81 areprovided in which the driven roll 82 is mounted which is driven from thedrive shaft '71 thru suitable mitre gears 83 and 84. A companion rollback of this drive roll is suitably supported and given the usualtraverse motion which need not here be described.

Each of the plates upon which the rotary members and rolls are mountedmay be slid into or out of the decks by a simple withdrawing operationwhich may be had by reason of the handle 85 mounted upon each of theseplates. Each plate is held in position with its gears, the teeth oftheir rotary members 33 being in proper intermeshing relation by reasonof the pin shown at 86 in Fig. 9, which is operated by a rotary shaft 87having a handle 88.

By this construction a long draftmay be provided in a single unit, thesliver being taken from the large doubling strand and reduced to theyarn size desired thru successive operations and without imparting anypermanent twist thereto.

By providing a false twist in the yarn between the upper and lower nips,the edges are turned inwardly and a more even draft is provided and thefray with consequent loss of fibers is reduced to a minimum and by thisfalse twist the fibers are maintained in their desired compact relationand sufficient strength is given to the thread as it passes thru thedifferent operations. Also by revolving the rotary members and the niprolls in opposite direction a lower speed may be used for the revolvingof the rolls in order that a false twist may be provided.

The foregoing description is directed solely towards the constructionillustrated, but I desire it to be understood that I reserve theprivilege of resorting to all the mechanical changes to which the deviceis susceptible, the invention being defined and limited only by theterms of the appended claims. I

I claim:

1. In a long draft spinning apparatus, a plurality of pairs of niprolls, means for separately rotating the rolls of each pair about itsown axis, means for revolving one of the pairs of rolls about an axispassing between the rolls and at an angle to the axis of the rolls, andmeans for traversing one of the rolls of each pair with reference to itsother roll.

2. In a long draft spinning apparatus, a plurality of pairs of niprolls, means for revolving the pairs of rolls about an axis passingbetween the rolls at an angle to the axis of the rolls, means forrotating said rolls, each about its own axis, and means for traversingone of the rolls of each pair with reference to the other roll;

3. In along draft spinning apparatus, a plurality of pairs of nip rolls,means for revolving the pairs of rolls of adjacent pairs in oppositedirections about an axis passing between the rolls at an angle to theaxis of the rolls, means for rotating the rolls of each pair about itsown axis, and means for traversing one of the rolls of each pair withreference to its other roll.

4. In a spinning apparatus, a plurality of superimposed decks, drivingmeans adjacent to each deck, a removable operable unit slidablysupported by each of said decks comprising a pair of nip rolls, andmeans connected with said driving means for rotating said nip rolls.

' 5. In a spinning apparatus, a plurality of superimposed decks, drivingmeans, a removable operable unit slidably supported by said deckscomprising a pair of nip rolls, and means connected with said drivingmeans for revolving said nip rolls about an axis passing between therolls and at an angle to the axis of said rolls, and means rotating saidnip rolls about their own axes.

6. In a spinning apparatus, a plurality of superimposed decks, drivingmeans, a removable operable unit supported by said decks comprising apair of nip rolls, means connected with said driving means for revolvingsaid nip rolls about an axis passing between the rolls and at an angleto the axis of said rolls, means rotating said nip rolls about their ownaxes,,and means for traversing one of the nip rolls of the pair withreference to the other roll.

7. In a spinning apparatus, a plurality of superimposed decks, drivingmeans, a removable operable unit supported by said decks comprising apair of nip rolls, means connected with said driving means for revolvingsaid nip rolls about an axis passing between the rolls and at an angleto the axis of said rolls, means rotating said nip rolls about their ownaxes, and means for traversing one of the nip rolls of the pair withreference to the other roll, said means being driven from said otherroll.

8. In a spinning apparatus, a frame comprising a deck, driving meanssupported by said frame including a gear, a removable plate slidablysupported by said deck, a member rotatably sup--. ported by said plateand provided with teeth to mesh with said gear and be driven thereby,nip rolls supported by said member, and means for rotating said niprolls.

9. In a spinning apparatus, a frame comprising a deck, driving meanssupported by said frame including a gear, a plate slidably supported bysaid deck, a member rotatably supported by said plate and provided withteeth to mesh with said gear and be driven thereby, nip rolls supportedby said member, means for rotating said nip rolls, and means fortraversing one nip roll with respect to the other.

10. In a spinning apparatus, a frame comprising a plurality ofsuperimposed decks, driving means supported by said frame and includinga gear for each deck, a draft unit slidably supported by each deck andincluding a plate having a slidable engagement with the deck andprovided with an opening with teeth about the edge thereof, a memberrotatably supported by said plate and provided with teeth to mesh withone of said gears and be driven thereby, a spur gear supported by saidrotary member and engaging the teeth in the edge of said opening totravel about with said member and be rotated by such movement, nip rollson said member, means for driving said rolls from said spur gear.

11. In a spinning apparatus, a frame comprising a plurality ofsuperimposed decks, driving means supported by said frame and includinga gear for each deck, a draft unit slidably supported by each deck andincluding a plate having slidable engagement with the deck and providedwith an opening with teeth about the edge thereof, a member rotatablysupported by said plate and provided with teeth to mesh with one of saidgears and be driven thereby, a spur gear supported by said rotary memberand engaging the teeth in the edge of said opening to travel about withsaid member and be rotated by such movement, nip rolls on said member,means for driving said rolls from said spur gear, and gear cam lever andlink means operated from one roll for causing the other roll to moveaxially with respect thereto.

12. In a long draft spinning apparatus, a plurality of pairs of niprolls, means for separately rotating the rolls each pair about its ownaxis, means for revolving one of the pairs of rolls about an axispassing between the rolls and at an angle to the axis of the rolls, andmeans for traversing one of the rolls of said revolving pair of rollswith reference to its other roll.

THOMAS HARRIS.

